Bug 1607329 – CVE-2018-14367 wireshark: CoAP dissector infinite loop (wnpa-sec-2018-42)

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Bug 1607329 - (CVE-2018-14367) CVE-2018-14367 wireshark: CoAP dissector infinite loop (wnpa-sec-2018-42)

Summary:	CVE-2018-14367 wireshark: CoAP dissector infinite loop (wnpa-sec-2018-42)

Status:	CLOSED NOTABUG

Aliases:	CVE-2018-14367

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20180718,repor...
Keywords:	Security

Depends On:	1607333 1607334
Blocks:	1607335
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Reported:	2018-07-23 05:54 EDT by Andrej Nemec
Modified:	2018-08-07 15:01 EDT (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	wireshark 2.6.2, wireshark 2.4.8, wireshark 2.2.16
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Last Closed:	2018-08-07 15:01:29 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Andrej Nemec 2018-07-23 05:54:20 EDT

It was found that CoAP dissector could crash by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.

Upstream bug(s):

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14966

External References:

https://www.wireshark.org/security/wnpa-sec-2018-42.html

Comment 1 Andrej Nemec 2018-07-23 05:57:12 EDT

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1607334]

Comment 3 Pedro Yóssis Silva Barbosa 2018-08-07 15:01:29 EDT

The wireshark shipped in Red Hat Enterprise Linux 6 and 7 do not have the "Allocate information for upper layers" functionality implementation in the dissect_coap function (epan/dissectors/packet-coap.c file).

Comment 4 Pedro Yóssis Silva Barbosa 2018-08-07 15:01:39 EDT

Statement:

This issue did not affect the versions of wireshark as shipped with Red Hat Enterprise Linux 6 and 7 (versions 1.8.10 and 1.10.14, respectively).

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